Creating Sketch Dimensions

A dimension controls the size of a sketch object, such as the length of a line or radius of an arc, or the relationship between two objects, such as a distance or angle.

Dimensions appear in the graphics window. Unlike drafting dimensions, changing the value of the sketch dimensions changes the shape and or size of dimensioned objects. This changes any features, such as extrude or revolve features, that the sketch curves control.

Dimensions may be applied by using the dimension menu on the Sketch Constraints toolbar.

1 — The default Inferred Dimensions icon infers the dimension type based on the objects that are selected and the position of the cursor.

2 — The other dimension icons are useful when the system is unable to infer the

desired dimension type. These different options are "filters" that when selected will only allow a specific dimension type to be created.

Certain types of geometry may not be selectable if they do not coincide with the  dimension type selected.

As dimensions are being created, the dimension, its extension lines, and arrows are displayed as soon as the geometry has been selected.

• Drag the dimension until it is the correct type, for example horizontal or parallel.

• Place the dimension by clicking MB1.

• Click and drag the dimension to the desired location.

Design Applications Using NX

Student Guide

February 2006

MT10055 – NX 4

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